obama says he has. >> we've put in the toughest, most crippling sanctions ever. but our economy is in a shambles. >> they do work. you're seeing it right now in the economy. >> the disagreement i have with governor romney is during the course of this campaign, he's often talked as if we should take premature military action. >> of course, a military action is the last resort. >> reporter: they touched on economic issues. >> i will get america working again. >> reporter: president obama recycling an attack. >> both at home and abroad, he has proposed wrong and reckless policies. >> reporter: their final face-to-face. the election, two weeks away. this race looks tied and both sides agree, nothing is more likely to affect the outcome of this campaign than this debate. i'm steve handlesman, nbc news, boca raton, florida. >> people who watched the debate quickly weighed in online. there were 6 1/2 million tweets tonight. we asked you to tell us who you think came out on top. angie golf continues our coverage with a closer look at tonight's tending topics. >> half an